Hope my question is not in the wrong forum topic. Most of my shooting is done on a homebuilt 200 yard range, with a downrange angle of maybe 10 to 15*. If I'm zeroed in with this much decline, how might I expect my groups to shift (everything else being equal) if I shoot on a level range? I'm having a hard time understanding how the level of the barrel might affect group shift. The scope is a SS10x42, and cartridge is a .308 if it makes a difference. Thanks in advance.

Shooting uphill or downhill causes less gravity pull. So if you have zeroed your rifle on a slope(uphill or downhill) your grouping will be lower when you shoot on a level range. I doubt however if a 10 to 15 degree slope is severe enough to cause much of an effect. I am sure Dale will be able to give you a more precise answer if you give him the ballistic info.

Wow! Talk about fast response time and useful information. Much appreciation. It'll take me awhile to wrap my brain around all of that, but in short, it looks like I would expect the POI to shift .4 inches at 200 yards. Am I reading that right?

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